Home / 338,867.06-507,970.10-161,326.40

Finding the Fourth Proportional to 338,867.06, 507,970.10 and 161,326.40

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Solution

The fourth proportional to 338,867.06, 507,970.10 and 161,326.40 is: 241,832.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,867.06 : 507,970.10 = 161,326.40 : x
  2. Step 2: Convert to fraction form
    338,867.06/507,970.10 = 161,326.40/x
  3. Step 3: Cross multiply
    338,867.06x = 507,970.10 × 161,326.40
  4. Step 4: Simplify right side
    338,867.06x = 81,948,985,404.11
  5. Step 5: Solve for x
    x = 81,948,985,404.11/338,867.06
  6. Step 6: Final answer
    x = 241,832.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.